Calculating scale



METTENQRF NW., 229 w27.,

QLCULATING S CALE 5 Sheetsusheet Filed May 16. 1925 VEN Taf-2 MUTE/MURENvo 229 (19270 1,@59227 W. R. MDTTENIDQRF CALCULATING SCALE May 16, 19255 Sheets-Sheet 2 TTR/VEX CALCULATING SCALE 4 WM ,m ME e fl @hw W.

Filed May .16. 1925 l @5,63%227 W. R, MaTrTENDQRF CALCULATING SCALE'Filed may i6, 1925 5 sheets-sheet 5 i? M C) I Lilli gli 60' 60 I m 4l/E11 50 x Patented Nov., 22, LQZ

i, nniTan sTnTnsl attain Wlllhlhlllr R. MITTENDORF, @ET CENCKNNATI,OHM), ASSGNOR T@ THE WATSQN EXlmEM-v MENTAL LABORATORY COMPANY, UEDAYTON, UEM), A. CORPORATN @llt @17519.

QALCULATL'N@ SCALE. i

' application niet may ie, icas. senat no. entre.

'lFhis invention relates to calculating scales and one object of theinvention is to provide suchal scale which may bey used for determiningthe number of articles in a mass ot articles of like Weight, or forcounting out computation or manipulation on the part oi the operatorotherthan/t-he placing of the unit or the setting et the unit valueindicator,

A. further object of the invention is to provide such a scale which willcount articles oit any odd unit oi weight within its capacity and willcompute the money value of a commodity at any odd price per unit oiweight Within its capacity without in any manner changing the mechanicalmultiplication oil2 4leverage which exists in the scale.

A further object oi the invention is to provide such a scale in whichthe result/oi the computation, whether a counting operation or a moneyvalue computing operation, will be indicated on a single series oigraduations.

A. further object of the invention `is to Vprovide such a scale whichwill indicate the result of the computation and the weight ol.`

the mass simultaneously and will also indicate the weight of the unit orindicate the price per` pound simultaneously with the indication of 'theresult ot the computation. y

A. ,further object otthe invention is to provide a scale oit thischaracter which will be simple in its construction and operation,accurate in operation and oi'. such a character that the parts thereofwill not be easily disarranged or l^so adected as to interfere with theproper-operation thereof.

@ther objects ci the invention will appear as thc mechanism is describedin detail.

the accompanying drawings Fig. i is a iront elevation of a scaleembodying my invention, partly broken away; llig. 2 is a verticalsection taken transversely of they mechanism on the line 2--2 of lllig.3; Fig 3 is a sectional viewy taken on the line 3--3 ot 1; lig. d isahorizontal section talren on the line of lig. l, showing thelowerportions of the mechanism in plan; Fig. 5 1s a transverse sectiontaken on the line 5 5 ot Fig. 2; Fig. 46 is a detail view, partly brokenaway, oi one of the dash pots; lFig. 7 is a sectional view taken throughthe casing and showing the dash pots in-plan view; lenig. 8 is an endelevation, partly broken away, showing the load balance; lllig. 9 is adetail elevation oi one ci the supporting posts with the check linkmechanism; Fig., l0 is a section taken on the line lll-l@ oi lFig. l;lig. 11 is a sectional view taken on the line ll-ll of lig. 10; lllig.l2 is a detail view of the manually operated adjusting mechanism for theindicator wire; lig. i3 is a facsimile, partly brolren away, oi thechart; lllig. lll is a section talren on the line 14d-lll of Fig l; Fig.l5 is a sectional view talren through the checlr link-mechanism on theline 2lb-l5 ot llig. la; Fig. 16 is a `perspective .view of the means'for holding-the indicator in a vertical position; vlllig.. i7 is asection on the line ll-l'( oi Fig. 2; lrlig. 18 is a plan view ot thepivot and support ir the indicating arm; llig. 19 is a section on theline 19-19 ot liig. 18; and llig.. 20 is a detail view of the leafspring on the manually operated adjusting device.

The calculating sca-le or the present in vention comprises twoseparately mounted indicating members which are independently titimovable into intersecting relation, one oir the members having a -seriesof graduations which will he intersected by the other member, theparticular graduation which is intersected by said other indicatingmember indicating' the result ot the computation. Both ot the indicatingmembers maybe con-I trolled by weighing mechanisms, such as a loadbalance and a unit balance separately connected with the respective`indieatingI members, or one ot the indicating members may be controlledby weighing mechanism, such as a load balance, and the other may bemanually adjusted. lha either instance each indicating member and itsas@ sociated operatin4 devices are wholly independent oif the otherindicating inem and its operating devices. ln the scale here illnetratedone indicating member is op erated by the load balance and the otherindicating member` is operatively connected with unit balance and may beactuated by said enit balance to compute the number or parts in a massof parts of like weight, or it may be manually adjustable for otherwiseedecting the computation, such as computing the number of parts in amass of like parts accordingk to an index number, or other arbitrarydesignation, or the computing of the value of the load on the loadbalance according to given price per pound. rllhat particular embodimentof the invention here illustratedr has been chosen for the purpose ofillustration only and it will be understood that the several parts ofthe scale may take various litorins-and may be associated one with theother in various manners without departing from the spirit of theinvention.

lin that particular embodiment of the invention here illustrated thescale comprises a base 1 having at one side thereof a forwardlyextending portion 2. Mounted on this base and enclosing the majorportion of the mechanism is a casing consisting of upright side members3 and d, a top meinber 5 and front and rear walls 6 and 7. The frontwall is provided with a relatively vlarge opening which is closed by apane of glass 7a or other transparent material. The side members 3 and eof the casing also constitute frame members and have mounted thereonfront and rear frames which extend transversely to the casing. 'lheseframes consist of upper transverse members 8 and 9 and lower transversemembers 10 and 11, which aresecured to lugs 12 carried by the respectiveside members 3 and 4f. The frames' also comprise uprightmembers 13extending between the end portions of the lrespective transverse membersand also secured to the lugs 12. The transverse and vertical members ofthe front and rear frames, respectively, are here shown as formedintegral. y

lnthis form of the scale one of the indicating members is in the form ofan elongated chart 14 mounted for bodily movement in a straight linetransverse to its j length and having a longitudinally extending seriesof raduations, and the 'other indicating mem er is in the form of awire, or other thin member, `15 which is p-ivotally supported at one endfor movement into a. position in'which it will intersect the series ofgraduations on the chart. The chart is provided with a plurality ofcolumns of numerals arranged parallel with the series of graduationsandthe corresponding numerals of the several columnsl are associatedwithzth'e. same graduation on the chart and are significant of the valueof this graduation` according to different units of computation. Thepresent chart has six columns of numerals and these columns are numbered1, 2, 5,10, 25 and 50, respectively, these numbers' representing thenumber of parts mthe unit. When a counting operation is :notariatenected with a unit consisting of' one part the numerals in the columnNo. 1 represent the value of the graduations. ljlfhen the count iseffected with a unit consisting of two parts then the numerals in thecolumn No. 2 repri-isentl the value of 'the respective graduations; andso on. The pivoted indicating member which is herein designated as awire may consist of a thin metallic wire c or it may consist of a strandof fibrous material or of any other suitable character and it will beunderstood that the term wire as herein employed is intended to includean indicating member'of this character regardless of the material ofwhich it is formed.

ln the present apparatus the chart is actuated by load controlledmechanism so that its position will correspond to the weight of theload. Preferably a load balance is operatively connected with the chart,through suitable supporting mechanism. The load balance is shown ascomprising a main lever 16 pivotally supported on the base 1. llhislever is rigidly secured at its outer or right hand end to a transverseportion or hub 17 which extends forwardly beyond the front wall/6 of thecasing and is provided at its ends with knife edge pivots 18 which aresupported in bearings carried by lugs 19 which extend upwardly from thebase 1 and the extension 2 thereof. Extending outwardly from this hubportion of the leverare two arms 2O and mounted in, these arms are knifeedge pivots 21 on which a load receptacle ,or platform 22 is supportedby means of bearings carried by lugs 23 depending therefrom. The loadreceptacle is maintained inits proper position with relation to the'lever by means of a post 24: extending downwardly therefrom into theexten-y sion 2 of the base and connected by means of a link 25 withasecond post 26 rigidly secured to the extension 2 of the base andarranged substantially parallel with the post 24. The' linkpreferably'has knife edge pivotal connection with the two posts and tothis end the postv 14 has rigidly secured thereto a plate 27 and thepost 26 has rigidly but adjustably secured thereto a plate 28, the plateand link having cooperating contact surfaces. The plate 28 is adjustablelengtliwise of the post V26 to facilitate the sealing of the right andleft hand sides of the platform. This adjustment is eifected by means ofa nut 29 screw threaded onto the post x and extending through an openingin the plate so that the vertical adjustment of the nut on the post willlikewise impart vertical adjustment to the plate. The plate is securedin its adjusted position by means of a screw 30 extending through a slotin the same and threaded into the post. 1t kis also desirable that therod or post 26 be adjustable radially so as to secure absolutevparallelism between the plates 27 and 28. To acmeager complish this llhave rigidly secured to the post 26 an arm 31, the position of which iscontrolled by an eccentric stud 32 mounted in the extension of the baseand extending through the end portion of the arm31. A milled collar 33is secured to the eccentric stud to facilitate the rotation thereof.After the adjustment of the rod has been effected by means of the'arm 31the stud or button 32 is secured in position by means of a screw 34 andthe rod is further secured to the base by means of screws 35.

The chart 14.is carried by a supporting structure 36 which isoperatively connected with the inner or long arm of the lever 16 of theload balance. This supporting structure is here shown as comprising anupwardly extending arm 37 and two diverging arms 38 and 39 extendinglaterally and downwardly therefrom. The supporting structure furthercomprises a hub portion 40 which may if desired, be formed integral withthe three arms and is provided with knife edge pivots 41 which engagebearings carried by brackets 42 extending upwardly from the transverseframe members 10 and 11. Rigidly but .adjustably connected with the hubof the supporting structure is a cam 43 and secured to this cam, bymeans of a clip 44, is a tape or metallic ribbon 45 which extends aboutthe cam surface thereof and has secured to its lower end a stirrup 46which is provided with a needle socket 47 to receive a needle point 48carriedbv the nose iron 49 of thelevcr 16. The cam 43 is adjustableabout the axis of the supporting structure by means `of a screw 50threaded through a lug 51 carried by the arm 39 and engaging aprojection or toe 52 ou the cam. The cam is locked in adjusted positionsby means of a screw 53 extending through a slot therein and threadedinto :i part of the supporting structure.

The supporting structure also serves to carry a pendulum counterbalanceforLthe lever 16 of the load balance and in the construction here shownthis counterbalancc comprises a weight 86 adjustably mounted on a rod 87which is connected with the supporting structure. The weight 86 ispreferably capable both of angular adjustment with relation to thesupporting structure and of radial adjustment with relation theretoe Theradial adjustment is secured "f by mounting the weight on the rod 87 foradjustment lengthwise thereof and providing means. such as a screw 88,for securing it in` its adjusted positions on the rod, The anguiaradjustment is secured by connecting the rod with the supportingstructure by means of a plate 89 which is preferably arranged concentricwith the axis of thesupporting structure and is adjustable about that'iris. This angular adjustment or the movement of the weight about theaxis of the supporting structure is accomplished by means of screws 89threaded in lugs 90 carried by the arm 38 of the supporting structure,the screws being arranged on opposite sides of the rod 87 andserving toadjust the same and to retain the same in adjusted position. 'i

Tivotally the arm 37 of the supporting structure is a chart supportingmember or lever 54. This lever may be mounted on the arm 37 in anydesired manner' and, in the present device, the upper portion of thatarm is forked, as shown in Fig, 3, and each fork is provided with anannular end portion 55 to receive a bearing 56 and is split so that thebearing can be clamped in position within the opening by means of ascrew 57. These bearings are adapted to receive the ends of a shaft 58carried by the lever 54 and projecting beyond the respective sidesthereof. T he chart is pivotally mounted on the lever 54 and may besecured thereto in any suitable manner but preferably a plate 59 isrigidly secured to the rear side of the chart and carries a bracket 6()having at its front and rear ends bearings61 to receive the ends of ashaft 62 which is carried by and projects beyond the lateral edges ofthe end portion of the lever 54. By means of this construction themovement of the supporting structure about its axis will impartlengthwise movement to the supporting lever 54 and to the chart. ,linorder that the computations may be accurately effected it is essentialthat the chart should beheld at a fixed height and, further, that itshould be retained in a true vertical position. To accomplish theseresults lt have provided a transverse guide 63 extending along the pathof movement of the chart and which is here shown as a rod or wire 63having at its left hand end a hook 64, theinner edge of which has aknife edge and is adapted to enter a V-groove in a collar 65 carried bya screw 66 mounted in lugs 67 on the upright frame member 13 at the lefthand side of the casing. In order that this guide wire lmay be retainedtaut and perfectly straight at all times ll .have interposed a springbetween the same and its point of connection with the -right hand sidemounted on the upper end of lli() of the frame.` To this vend the wireis provided with a head 68 which is slidably mounted in a tubular shell69 whichI is connected by means of a hook 70 with a collar 71, having aV-shaped groove and carried by a screw 72 mounted in lugs 73 on theupright frame member 13 at the'right hand side of I the casing. A.spring 74 is coiled about the wire 63 within the shell 69 and betweenthe head 68 of the wire and the inner end of the shell and thus servesto exert a constant pull upon the guide wire and hold the same undertension. Connected with the chart are suitable parts which cooperatewith this liti guide wire to retain the chart inl its proper position.'llhe yguide wire is so arranged that it lies just above the shaft 82 bymeans olf which the chart is supported on the lever 54. Arranged justabove the guide wire is a rearwardly extending stud *(5 which is carriedby the bracket 60 and is spaced 'from the shaft 62 a distance slightlygreater than the thickness ot the guide wire so that when the chart issupported at its proper height both the shaft and the stud will be outof contact with/the guide wire but any tendency of the chart to moveupward or downward will cause one or the other ot these members tocontact with the guide wire before .any appreciable movement has beenimparted to the chart. Connected with the chart and preferably securedto the plate 59 is an arm 76 which extends lengthwise ot the guide wire63 for a considerable distance be-y yond the edge of the chart and isprovided with transversely extending fingers 'il' arranged above andbelow the guide wire G3 and spaced apart a distance slightlygreater thanthe thickness of that wire so that when the chart is in a true verticalposition both lingers will Abe out ot engagement with the guide wire butany tendency on the part ot the chart to move out of al verticalposition will cause one or the other of the iingers to engage theguidewire and check the movement of the chart betore it has departedappreciably from its vertical position.

Any frictional resistance offered to the movement ot the chart or itsVcontrolling devices will adversely affect the accuracy ,ot thecomputation and, in the present structure, I have practically eliminatedfriction from the controlling mechanism for the chart. This `I haveaccomplished by establishing the center of avity ot the chart at itsaxis and by establishing thefcenter of gravity of the chart supportinglever at its axis. lBy

thus establishing the centers of gravity of these parts at their axesall pressureon the parts is removed and consequently the trictionbetween the contacting portions of the controlling mechanism iseliminated. The

centers of gravity of these parts may, of

course, be established at their axes by the proper proportioning andshaping of the parts themselves. but I preferito provide adjustablemeans whereby thisV may be accomplished.V In order to establish thecen-v ter of gravity of the chart at its axis I have vmounted on thebracket 60 weights 78 and 79 which are screw threaded onto pins 80 and81 anchored on the bracket and which extend iny intersecting lines. Thesupporting lever 54 is also provided, with weightsl 82 and 83 screwthreaded onto pins or projections 84 and 85 which are anchored in thelever on that side otits axis opposite I the chart and which also extendin'intersecting lines. By means of these balancing weights the center otgravity ot the lever unit, which comprises the lever 54 and all theparts attached to it, including the chart itself7 may be established atthe axis of the' part except that which is caused by the in- Jliuencewhich tends to move the chart from its true position and as soon as thisinfluence is removed the friction between the guide members will beentirely removed.r

lFor convenience in sealing the scale it is desirable that thecounterbalancing weight 80, rod 8l" and plate 89, which may be 'termedthe counterbalance unit., be made to serve as the sole counterbalancetor the lever 16 ot the load balance uninluenced by any variabledistribution ot weight in the supporting structure and the parts carriedthereby. For this purpose the center' ot gravity ot the supportingstructure and all parts attached thereto, including the chart supportinglever and chart but excluding the cam and the counterbalance unit, isestablished at the axis of the supporting structure. ln the presentdevice adjustable means are provided tor so establishing the center otgravity ot the supporting structure and this means comprises a weight 91mounted on and adjustable lengthwise ot a rod 92, a screw 93 beingprovided to hold the weight in adjusted positions on the rod. The rod 92is connected with the supporting structure by means of a'plate 94mounted on the supporting structure concentric with the axis thereof andadjustable about said axis. The rod and the weight 91 are held in theirangular adjusted positions by means of screws 95 threaded in lugs 96 onthe arm 89 of the supporting structure and engaging the opposite sidesof the rod 92. It is also desirable that the cam 43 have its center ofgravity establishedat its axis so that the ellect of its dead weightwill be the same in any position to which it maybe' adjusted. For thispurpose the cam is provided with a balance weight 97 threaded ontoascrew 98 mounted in the cam and is further provided with a balance screwplug 99.

A second indicating member or wire 15 is pivotally mounted for movementabout an axis coincident with the zero graduation on the chart and, inthe present construction` it is carried by a supporting member 100, thehub portion 101 of which is provided with knife edge pivots 102 whichengage bearings in brackets 103 extending upwardly from the front andrear frame members 9 and 8.

lill

Rigidly secured to this supporting member is oov lill) retener l thechart. Vllhe lower end ol this arm is curved -so that when in its normalposition ,it will extend beneath the center line olf the chart and thelower end oit the wire 15 is connected with this end of the arm. rllheupper end of the wire is connected with the supporting member 100 and inorder that the wire may be held taut andA straight at all times l preferto interposea spring between the wire and its point of connection withthe supporting member. its here shown, a coiled spring 105 is connectedat its lower end with` the Wire and is connected at its upper endv witha forwardly extending lug\100 torming part of apbracket A107 whichis-pivotally mounted on the supporting member. 'llhe bracket has at itslower edge a second forwardly extending lug 108, the forward edge ofwhich is notched and forms a seat for .the wire and in which the wire isheld by the action of the spring 105. llt is essential that when the twoindicating members are in their normal or idle positions the wire sha-lllie directly in front of the center line .oit the chart and intersectthe knife edge of the pivot 102 and in order that the wire may beadjusted with relation to the chart and the pivot ll have provided meansfor adjusting the bracket 17 with which the upper end of the wire isconnected. As here shown, the

bracket is provided withv rearwardly extendl ing lips 109` in which aremounted screws 1-10 arranged to engage the opposite sides ot a part otthe supporting member so that the adjustment of the screws will adjust.the bracket with relation to the supporting member. v

The Wire may be moved about its axis in any suitable manner but, 'as hasbeen above explained, the present mechanism is desi 'ned for operationeither by a unit controll vice or manually, the manual operation beingeii'ected by the manual manipulation of the unit controlled device. 'llothis end the snpporting member 100 is operatively connected with a unitbalancewhich comprlses a main lever 111 having knife edge pivots 112whichy are supported in bearings carried by bracketsA 113 extendingupwardly from the transverse bars 10 and 11. The longer end of the lever111 extends through and beyond the side wall of the casing and haspivotally support i ed on its outer end aiholdeir 114 :lor a unitreceptacle 115. A check link 116, pivotally connected with a stud 117 onthe holder` tor porting member 100 for the wire is an arm 119 which ishere shown as comprising two parts rigidly connected one to the other bystuds 120 and arranged concentric of the axis of the supporting member.A knife edge pivot 121 arranged betweenV the two de-I osition A unitreceptacle. For convenience in sealing j,

the unit balance the lever 111 is provided at its right hand end withweights 127 and 128 adjustably mounted thereon byv means of screws 129and 130. 'l`he weight/127 serves to regulate the initial load asdetermined by the tension required on the ribbon 123, and the weight 128serves to regulate theI distribution of the weight in the lever aboveand below the range line, which is the line extending across the axis otthe lever 111 and the pivot of the unit receptacle. holder 114i. 'llhelever 111 is also provided in its outer Aend with a balancing weight inthe /orm of a screw 131by means of which the hero balance of the unitbalance may be regu= lated in case the unit balance should get out tancefrom its axis andI the proper angle@ from the plumb line through saidaxis, so as to give a counterbalancing action such as is required tobring the indicating wire 15 into the angular position necessary toedect accurate calculations. For this purpose l have provided the'vsupporting member with weights 171 and 172 which are adjustably mountedthereon by means olf screws 173 and 1711 and by means ot which they maybe adjusted along intersecting lines. lin so regulating the center ofgravity ot the pendulum unit to attain the proper positions of theindicator wire 15 the angular position of the arm 119 related to thewire must also be regulated and this is accomplished by means ot screws175, mounted in the supporting member and engaging the studs 120, whichare arranged on opposite sides of the axis of the arm 119.

ico

17V ith the mechanism above described the i scale will operateautomatically for the counting ot parts, the only action required on thepart oit the operator being to place the necessary unit ot said parts inthe unit receptacle and to place the parts tol be counted on the loadplatform.

'j 1n various uses et the scale it may be dei Should benone that siredto adjust the indicating wire manually, as, for example, when it isdesired to compute the money value of a commodity according to a givenprice per pound, or where parts of a certain kind are counted attrequent intervals it may bev desirable to determine the position o theindicating wire for a given unit of said articles and then set the wirein that position by hand instead of by placing the unit in they unitreceptacle. rl`o thisend I have mounted in the casing a chart 132 whichis so arranged that the lower end ofthe indicating wire will travel overthe same and whichv is provided, in the present instance, with threeseries of vgraduations. The lower series of graduations, 135, isdesignated by arbitrary numerals which constitute what may be termedindex? numbers.

When it. is desired to use an index number in counting articles a unitof these articles is placed in the unit receptacle and the position ofthe wire on the series of graduations 135 isnoted, a record being madeot the index number corresponding to the graduation which is intersectedby the wire. rlhere should be associated with this index number a secondnumeral lndicating the number ot parts in theunit, to enable theoperator to ydetermine which column of numerals on the chart is to beused in connection with the graduations thereon, the index number beingwritten, for` example, as f2 thus lndicating that when counting articlesof that kind the indicator wire should be set on the aduation numbered25 and the reading rom the chart 14 should be taken in theNo. 2 column;In this connection it arts, such as are usually counted on mec anisms ofthis kind, will varyslightly in weight. Obviously any variation in theweight f of those articles which constitute the unit will ad'eet thecomputation and where an index number is being selected it is preferablethat a considerab e number of parts should be tested 'and the yunitwhich is used to vdetermine the index number `made up of parts ofaverage,

weight, thereby reducing to a minimum the error in the computationresulting from the variations in the weight of the parts.

The upper portion of the chart 132 is graduated incents, as shown at133, and in computing the value of the commodity on the load platform itis only necessary to set the indicatorl wire` on that graduationcorresponding to the price per pound, the No. 1 column of numerals onthe indicating chart lllbeing used in computing the value. Theintermediate portion of t e chart, 136, is graduatedl in ounces andfractions thereof and may be utilized to'determine the position of theindicating `wire where the weight of a unit is known, and also serves toin- *dicate the weight of the unit.

Any suitable means may be provided tor 'scoop or other container antena?manually adjusting the indicator wire but where the unit balance isprovided l prefer 'this end'l have mounted within the casing avertically adjustable bar or elongated plate 137, the lower end of whichis so arranged that when the bar is moved downwardly it will engage thelever 111 and thus actuate the indicating wire. As here shown, this baris slotted and slidably mounted on studs 138 carried by the side member3 ot the main frame and is held thereon by means of screws 139. @ne edgeof the bar' is provided with a series ot rack teeth, as shown at 140,with which meshes a pinion 141 mounted on a short shalt 142 journaled inthe trame member 3 and having on its outer end a knob or operatinghandle 143 by means ot which it may be rotated and vertical movementimparted to the actuating bar 137. When the bar 137 is in its uppermostposition the end thereof will lie beyond the path et movement ot thelever 111 and the' operation of the lever will be in no way affected bythe presence ot that bar. When the indicating wire is to be set by handthe bar is actuated through the medium ot the knob 143 to torce thelever 111 .downwardly until the indicating wire has rbeen moved to itscorrect position. ln order to hold the actuating bar in its elevatedposition when it is idle and te hold the same against upward movementdue to the thrust on the unit balance which tends to raise the lever 111l have interposed between the plate and the heads of the screws 139 aflat spring 144, which is so curved that it will exert sufcient pressureon the plate to hold the same normally in its adjusted positions. y

Connected to the supporting structure 36 for the chart 14 is anindicating arm 145 which carries at its upper end an indicating wire 146arranged to travel over a fixed chart 147 graduated in pounds andounces, the arrangement of this indicator arm with relation to the willindicate on the chart 147 the weight of the load, on the load platform22, simultaneously with the indication on vthe chart 14 of the result ofthe computation.

ln order to oilset the tare weight of the which may be used in placingthe mass of parts on the platform of the load balance. l have providedthe transverse or hub portion 17 of the lever 16 with an extension orarm 148 which extends parallel with the main lever 16 in front oi thecasing and have pivotally mounted onY this arm of the lever a scoopweight 149 which may be moved from one side of its axis to the other andwill' be supported in either position by one or the other of two lugs150. In Figs. 1

and-L4 the scoop weightis shown lil() load balance being such that it- 4Medea? l in the scoop-oft position. When a stand- .lli

ard scoop is placed on the load platform the weightis moved to theopposite side of' its axis, in. which position it Will offset the Weightot' the scoop. 'lo ltake c are of con# tainers other than 'standardscoops a tare beam 151 is mounted on the arm or lever 148 and hasmounted thereon a tare poise 152 Which may be adjusted to offset theWeight ot' the container on the platform.

rllhe vibrations of the' load balance and unit balance are controlledrespectively by dash pots`154 and 155 which, in the present instance,are substantially identical in construction. Eachl dash. Ipot comprisesareceptacle 156 secured to the base 1 and having mounted therein a piston'157, the movement of which is resisted by liquid Within the receptacle.The piston or plunger 157 is connected with a piston rod 158 whichextends through an opening in the top Wall of the receptacle and isconnected at its upper end with the main lever of the balance With Whichthat particular dash pot is associa-ted. Preferably the connection is aball and socket connection to enable a full universal action ot thepiston rod, the ballbeing preferably formed on the end of the rod andseated in a socket 159 carried by the lever. 'lhe socket is here shownas adjustably mounted and to this end is secured to a plate 160 Whichmay be secured in adjusted positions on the lever by means of screws161. 'llhe dash pot is provided with a by-pass 162 which is connectedWith the interior of the receptacle above and belowl the*y piston sothat the movement of the piston Would force the liquid through thisby-pass. The rate ot How of liquid through the by-pass is controlled bya plunger or sliding'valve 163 having a stem 164 extending through astutling box 165 and provided with an actuating knob 166 which liesbeyond thetWall o't the base. By manipulating the knob,`166 the plunger163 may be x caused to extend into. the bly-pass a greater `or lesserdistance and thus restrict to a greater or lesser extent the passagewaythrough which the liquid must pass.

Owing to the fact that ,the tvvo balances are gravity controlled it isimportant that the device as a Whole should be set level when sealingthe balances and'vvhen-in use. For this purpose leveling screws 167 arethreaded in the base and are independently y adjustable so that thescale may be acc`urately leveled. Y

rllhe front plate 6 of the casing has a rela.- tively large openingclosed by glass through which the indicating members and theirassociated devicbs may be viewed but such portions of the mechanism asit is not desired to expose to view maybe hidden by means of coverplates 166, 169 and 170, these pla-tes being arranged in the rear of theindicating members but in front of the major portions of the mechanism.

lln the construction here shown, the pendulum counterbalance of the loadbalance is of the reverse type, acting upon the lever in the samedirection as the load, Whereas the pendulum counterbalance of the unitthe main lever of the load balance is of the first order, Whereas themain lever of the unit balanceis of the second order. 1t Will beunderstood,'however, that these are mat- Will.

utilized for determining the number of articles in a mass of likearticles placed on the load platform, by placing a unit ot thesearticles in the unit receptacle. Likewise any desired number ot partsWithin the range of the scale ma-y be counted out by placing a. unit ofthose parts in the unit lreceptacle and then adding parts to the mass onthe -ters ofv expediency vvhich may be varied at llt Will thus be seenthat the scale may be load platformr until the indicating Wireintersects that graduation on the chart which represents the number ofparts desired. Further, the same results may be accomplished'by settingthe indicating Wire accordlng to an index number representing theposition of the Wire tor .a given unit of a particular kind of article,thus enabling the indicating Wire to be set manually instead of by theuse of a unit.

Further, the money value of a commodity placed upon the load platformmay be determined by manually adjusting the indieating wire lto theprice per pound. indica.- tion on chart 133 and'taking the reading fromthe No. 1 column on the indicating chart 14C.. lin this latterconnection it will be understood, of course, that if the scale were tobe used as a money value computing scale exclusively the unit balancewould he omitted and the manner ot supporting and adjusting theindicating vvire 15 changed accordingly.

Where it is desirable that the computations should be visible on bothsides ot the )itil lill@ machine, 'as vvhen it is used for computingunderstood that ll do not desire to be limited to the details thereof asvarious modifications may occur to a person skilled in the f art.

Having now fully described vmy invention, vvliat ll claim as new anddesire to secure by Letters lPatent,is:

l. lin a scale, an indicator comprising a movable member, a pivotedsupport on which said movable member is pivotally mounted, means foractuating said pivoted support, a single guide member extending parallelto the path of movement of said movable member, and parts connected Withsaid movable member and arranged on tlie opposite sides of said guidemember to hold said movable member against vertical displacement as saidpivoted support is moved about its axis.

2. lin a scale, an indicator comprising a movable member, a pivotedsupport on vvliichl said movable member is pivotally mounted, means foractuating said pivoted support, a single guide member extending parallelto the path `of movement ot said movable member, and parts connectedWith/v said movable member and arranged on the opposite sides of saidguide member to hold said movable member in a true vertical position assaid pivoted support is moved about its axis.

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3. lin a scale, an indicator comprising a movable member, a pivotedsupport on which said movable member is pivotally mounted, means foractuating said pivoted support, aA single guide member extendingparallel to the path of movement ot said movable member, vand partsconnected with said movable member and arranged on the opposite sides ofsaid guide member to hold said movable member against verticaldisplacement and to retain the same in a true vert-ical position as saidpivotal support is moved about its axis.

4. lln ak scale, cooperating indicating members, a. supporting structuremounted for movement about a fixed axis, a member pivotally mounted onsaid supporting structure and carrying one of said indicating members, asingle guide member, parts con-- nected Withsaid indicator member andarranged on opposite sides of said guide member to bold said indicatingmember against vertical displacement when said supporting structuremoves about its axis, said pivoted t member having its center of gravityestablished at the axis\tl1ereof to prevent frictional contact betweensaid guide and said parts, and means for actuating said supportingstructure. i

5. In a scale, cooperating indicating members, a supporting structuremounted for movement aboutie fixed axis, a member piv `otally mounted onsaid supporting structure antena? and carrying one of said indicatingmembers, a single guide member, parts connected with said pivoted memberand arranged, respectively, above and belovv said guide member, meanstor holding said parts normally out of Contact With said guide member,and means for actuating said sup porting structure. i

6. ln a scale, cooperating indicating members, a supporting structuremounted for movement about a iixed axis, a member pivotally mounted onsaid supporting structure and carrying one of said indicating members, asingle guide member, parts connected with said pivoted member andarranged respectivel above and belovv said guide member, andY normallyout of contact therewith, and adjustable means for establishing thecenter ot gravity of said pivoted member at the axis thereof, and meansfor actuating said supporting structure.

7. lin a scale, "cooperating indicating members, a. supporting structuremounted for movement about a fixed axis, a lever pivtally mounted onsaid supporting structure, means for pivotallysupporting one ot-saidindicating members on said lever, means for establishing the centers ofgravity ot said lever and said indicating member at the axes thereof, asingle guide member, parts connected With sald indicating member andarranged on opposite sides of said guide member to retain saidindicating member in a true vert-ical position and to cause the same totravel in a straight line, and means for actuating said supportingstructure. l

i 8. In a calculating scale, cooperating inf dic-ating members, asupporting structure mounted for movement Aabout a fixed axis, a memberpivotally mounted on said supporting structure, one ot said indicatingmembers being pivotally mounted on said pivoted member, a guide, partsconnected with said indicating member and said pivoted i'nember tocooperate With said guide to cause said indicating member to move in astraight line when said supporting strueture moves about its axis'v andto reta-in said indicating member in a true vertical position, and meansfor actuating said-supporting structure. i* f 5 K 9. ln a calculatingscale, cooperating indicating members, a supporting structure mountedfor movement about a fixed axis,.a member. pivotally mounted on saidsupporting structure, one ot said indicatingmembers being pivotallymounted on said piv-` oted member, an elongated guide, parts connectedwith said indicating'member and arranged on the opposite sides of saidguide to hold the 'indicating member against vertical displacement,other parts `connected with said indicating member, spaced from theneedeer axis thereof and lying on the opposite sides of said guide toretain said indicating memberin a true vertical position, and meansytoractuating said supporting structure.

l0. ln a calculating scale, cooperating indicatingV members, a.supporting structure mounted for movement about a ixed axis, a memberpivotally mounted on said supporting structure, one of said indicatingmembers being pivotally mounted on said pivoted member, an elongatedguide, parts connected with said indicating member and arranged on theopposite sides of said guide to hold the indicating member againstvertical displacement, other parts connected With said indicating memberspaced from the axis thereof and lying on the opposite sides of saidguide to retain said indicating member in a true vertical position, saidpivoted member and said indicating member having their centers otgravity established at the respective axes thereof, and means toractuating said supporting structure.,

ll. lln a calculating scale, cooperating indicating members, aYsupporting structure mounted :l'or movement about a iixed axis, a leverpivotally mounted on said supporting structure, a bracket secured to oneof said indicating members and having bearings, a shaft carried by saidlever and engaging said bearings to pivotally support said indicatingmember on said lever, a stud carried by said bracket and spaced fromsaid shat't, a guide extending between said stud and said shaft, an armconnected with said indicating member, extending along said guide andhaving spaced fingers to embrace said guide, and means :i'or actuatingsaid supporting structure.

l2. ln a calculating scale, a sup orting structure mounted for movementa out a iixed axis, a lever pivotally mounted on said supportingstructure. vertically arranged elongated chart, a plate rigidly securedto said chart, a bracket secured to said plate and having bearings, ashaft secured to lsaid lever and engaging said .bearings to support saidchart on said lever, a stud @carried by said bracket andxspaced fromsaid lever, a guide vvire extending between said stud and said shaft, anarm rieidly secured to `said plate, extending along said guide vvire andhaving fingers arranged to embrace said guide wire and hold saidchart'in a true vertical position, an indicating member to cooperateWith said chart, meanstor actuating said indicating member, and means-tor actuating said supporting structure.

i3, ln. a calculating scale, cooperating indicating members, aVsupporting structure mounted for movement about a fixed axis, a memberpivotally mounted on said supporting structure, and carrying one of saidindicating members, a horizontal guide Wire mounted in a normally xedvertical posistructure.

14. lln a calculating scale, a frame, coop- Grat-ing indicating members,a supporting structure mounted on said frame for movement about a fixedaxis, a member pivotally mounted on said supporting structure andcarrying one of said indicating members, collars mounted on said framein spaced relation one to the other and each having a circumferentiallit-shaped groove, a Wire having at its opposite ends hooks havingtapered edges to engage the grooves in said collars and hold said Wireagainst vertical displacement, parts connected with said pivoted memberand said indicating member to engage said Wire and hold said indicatingmember against vertical displacement and in a truc vertical position,and means :for actuating said supporting structure` l5. ln a calculatingscale, a trame, cooperating indicating members, a supporting structuremounted on said trame for movement about a fixed axis, a memberpivotally mounted on said supporting structure and carrying one of saidindicating members, a guide rigidly connected at one end with said frameand having a head at its other end, a tubular casing secured to saidtrame in which said head 4is slidably mounted, a spring confined betweensaid head and the inner wall of said casing'to hold said wire undertension, parts connected with said indicating member to engage saidvvire and control the position of said indicating member, and means foractuating said supporting structure, v

16. lln a calculating scale, an indicating member, load controlled,means itor" actuating said indicating member, aI second indicatingmember to cooperate with the iirst mentioned indicating 'memben unitcon-v trolled means 'for actuating said second indicating member,manually actuatedy means arranged to impart movement to said unitcontrolled means and actuate said second inn dicating memberindependently ot the unit, and a chart arranged adjacent to the path otvmovement of said second indicating member to indicate the positionthereof. t

l?. ln a calculating scale, an indicating member, load controlled meanstor actuating said indicating member, a second indicating member tocooperatevvith the tirstmentioned indicating member, unit controlledmeans for actuating said second indicating member, manually actuatedmeans arranged to impart movement to said unit controlled means andtlc/tirate said second in-s lfltl) dicating member, manually actuatedmeans controlled means and actuatc said second indicating memberindependently ot tlie unit, a chart arranged adjacent to the Apath otmovement ot said second indicating member and having a series otgraduations designated by index numbers and having a. sec- -ond seriesoit graduations representing money values.l u

19, ln a calculating scale, an indicating member, load controlled meanstor actuating said indicating member, a second indi-- eating member tocooperate with the lirst mentioned indicating member, a unit receptacle,a lever supporting said unit receptacle and operatively connected withlsaid second indicating member, and a manually operated device arrangedto engage said lever and actuate said second indicating member. `f 20..lln a calculating scale, an indicating member, load controlled means toractuating said indicating member, a second indicating member tocooperate with the rstmentioned indicating member, a unit receptacle, alever supporting said unitreceptacle and operatively connected with saidsecond indicating member, an actuating member arranged to engage saidlever and impart movement to said second indicating member, manually,

operated means to impart movement to said actuating member, and means toretain said actuating member in adjusted positions.,

2l. lln a calculating scale, an indicating member., load controlledmeans for actuatingq said indicating member, a second indicating' memberto cooperate with the first mentioned indicating member, a unitreceptacle, a lever supporting said unit receptacle and operativelyconnected with, said second indicating member, an actuating membermounted tor movement into engagement with said lever ing member andhaving rack teeth in one edge thereot, a pinion meshing with said teeth,an operating handle connected with said pinion, and means tor retainingsaid actuating member in adjusted positions.

22 lin a calculating scale, an indicating xto'impart movement to saidsecond indicat nea-aaa? member, load controlled means "for actuatingsaid indicating member, a second indi eating member to cooperate withthe irst mentioned indicating member, a unit recepH tacle, a'leversupporting said unit receptacle and operatively connected with saidsecond indicating member, a plurality ot' studs mounted in tixedpositions above said lever, a plate mounted on said studs and havingvertical slots, screws extending through said slots into said studs,said plate having racl teetb in one edge tiner-eot, a pinion meshingwith said raclt teeth, an operating handle connected with said pinion,and a tint spring carried by said screws and held thereby in trictionalcontact with said plate.

23. ln a calculating scale, cooperating indicating members, a supportingstructure pivotally mounted on a lined airis and comprising an upwardlyextending arm and laterally and 'downwardly extending arms, a leverpivotally mounted on the upwardly extending arm, means tor supportingone of said indicating members on said lever, means tor controlling tbeposition ot said indicating member when it moves with said lever,

rods mounted tor adjustment about the axis ot' said supporting structureand extending lengthwise of the respective last mentioned arms, Weightsmounted on said rods tor adjustment lengthwise thereof, means carried bythe respective arms and engaging said rods to adjust said Weights aboutthe airis ot said supporting structure, and means tor actuating saidsupporting structure.

24. ln a calculating scale, an lindicating member, unit controlled meanstor actuating said indicating member, a second indicating member, alever operatively connected With said second indicating member, a loadreceptacle pivotally supported on said lever, a post rigidly secured toand depending trom said receptacle. a fixed post arranged substantiallyparallel with but spaced trom the first mentioned post, a link liaving aknife edge pivotal connection with each of said posts, and means toradjusting said fixed post with relation to the first mentioned post.

25. ln a calculating scale, an indicating member, load controlled meansfor actuating said indicating member, a second indicating member tocooperate With the iirs't mentioned indicating member, means torpositioning saidsecond indicating member according to a unit etcomputation, and a chart arranged adjacent. to the path ot movement otsaid second indicating member to indicate the position thereof.`

ln testimony whereof, l atlix my signature hereto.

. vvintiaiu la. Mrrrnnnoar.

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